diff options
Diffstat (limited to 'src/backend/executor/execGrouping.c')
| -rw-r--r-- | src/backend/executor/execGrouping.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/executor/execGrouping.c b/src/backend/executor/execGrouping.c index af6e9c42d81..5da4b375300 100644 --- a/src/backend/executor/execGrouping.c +++ b/src/backend/executor/execGrouping.c @@ -459,8 +459,8 @@ TupleHashTableHash_internal(struct tuplehash_hash *tb, Datum attr; bool isNull; - /* rotate hashkey left 1 bit at each step */ - hashkey = (hashkey << 1) | ((hashkey & 0x80000000) ? 1 : 0); + /* combine successive hashkeys by rotating */ + hashkey = pg_rotate_left32(hashkey, 1); attr = slot_getattr(slot, att, &isNull); |